State ProLine XE

ProLine XE is a State Water Heaters product family rather than one fixed appliance. It includes residential storage heaters with different fuels, tank capacities, recovery rates, and efficiency specifications.

The decision depends first on the utilities and connections already available in the home. A gas ProLine XE needs combustion and venting provisions, while an electric version requires a correctly sized electrical circuit.

Sizing should use the model's first-hour rating and the household's peak demand rather than tank volume alone. A family using two showers and laundry close together needs a different ProLine XE configuration from a one-person household.

An electric model cannot heat water without electrical power, although water already stored in its insulated tank may remain warm temporarily. Gas models vary because some use electronic ignition or powered controls, so the exact model number matters.